Add 81/6 and 35/21, Solve 13 3/6 + 1 14/21 as a fraction

Add 81/6 and 35/21

1^st number: 13 3/6, 2^nd number: 1 14/21

81/6 + 35/21 is 91/6.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 21 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 6 × 7 = 42,
81/6 = 81 × 7/6 × 7 = 567/42
Likewise, for the 2nd fraction, since 21 × 2 = 42,
35/21 = 35 × 2/21 × 2 = 70/42
Add the two like fractions:
567/42 + 70/42 = 567 + 70/42 = 637/42
637/42 simplified gives 91/6
So, 81/6 + 35/21 = 91/6
In mixed form: 151/6

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